david3553's articles:

Items(49) /5 Next >> Last >|

Tough System Variable Question for the IDL Gurus 4 43 (11/11/2009 10:05:11 PM) comp.lang.idl-pvwave OK, you IDL gurus. How do you delete an IDL system variable you have created with DefSysV without getting out of the IDL session? IDL> DefSysV, '!TESTER', 5 IDL> DelVar, !TESTER % DELVAR: Expression must... David

IDL 7 Conspiracy Theory 2 48 (12/6/2007 5:41:01 PM) comp.lang.idl-pvwave Folks, I'm just thinking out loud here, but what if IDL 7.0 is a conspiracy to rid the maintenance roles of all those cheap bastards who use underpowered computers and direct graphics? I'm talking about govern... David

MESH_DECIMATE Gotcha 0 42 (11/2/2007 8:49:10 PM) comp.lang.idl-pvwave Folks, I just wasted another couple of hours on this, so I thought I would mention it. (And perhaps write a small article about it.) I had a "blob" and I wanted to save this thing as a shapefile. So I found t... David

NCEP Reanalysis Temperature Data Problem 19 47 (10/25/2007 4:56:50 PM) comp.lang.idl-pvwave Folks, I am looking at some monthly NCEP Temperature Data, stored in a NetCDF file: http://www.cdc.noaa.gov/dtat.ncep.reanalysis.pressure.html I have no problem reading the data file, but the time data, w... David

Adding Widgets to ENVI 2 38 (9/17/2007 11:02:28 PM) comp.lang.idl-pvwave Folks, Suppose, for whatever reasion, I did NOT want to add widgets to a user function in ENVI with WIDGET_AUTO_BASE. Suppose I understood widget programming and felt comfortable building my own widgets. How w... David

ENVI File Question #2 4 50 (9/13/2007 4:05:52 PM) comp.lang.idl-pvwave Folks, Sorry for all the ENVI questions, but the documentation is wonderful in that it leaves so much for the imagination to fill out. :-) Last night, when I left this project, I was reading a GeoTiff file ... David

Using ENVI with IDLWAVE 2 60 (9/12/2007 9:17:33 PM) comp.lang.idl-pvwave Folks, I'm not sure I would even understand the answer to this question, but let me ask it anyway. I'm using the IDLWAVE mode in Emacs. I still can't remember always how to do a damn search and replace, but it... David

ENVI File Question 4 42 (9/12/2007 8:43:18 PM) comp.lang.idl-pvwave Folks, I have an ENVI file question. I just want to open a Geotiff file, do some small amount of processing on it, and save it as an image file ENVI can read. This seems about as straightforward as it can be. ... David

Mort's Book 0 35 (8/24/2007 5:55:22 PM) comp.lang.idl-pvwave Folks, After using some of those hard-earn breathing techniques I have been learning in Tai-Chi to control my breath in the face of the onslaught of mathematical equations in Mort's book, it is growing on me. ... David

Principle Componets Analysis 22 26 (8/23/2007 6:27:15 PM) comp.lang.idl-pvwave Folks, Is it just me, or is this turning into an ENVI forum... I have three bands of a Landsat image. They come in three separate files (GEOTIFF). I have opened all three in ENVI. I wish to perform a principl... David

david3553's replies:

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Paths in the Workbench 15 26 (3/31/2008 4:17:07 PM) comp.lang.idl-pvwave Folks, Has anyone been able to make heads or tails out of how paths are managed in the IDL Workbench!? This friggin' thing is driving me CRAZY! I have basically no confidence anymore that I know what files I'm... news2122 (4023)

IDL Workbench or Eclipse? 2 44 (4/7/2008 1:23:57 PM) comp.lang.idl-pvwave I've noticed that this newsgroup has almost become comp.lang.idl-workbench lately. Now I haven't taken the dive into IDL 7.x yet, so I have nothing substantial to contribute, but I wonder it anyone is using th... mmiller3 (59)

changing font type on a widget 2 65 (10/23/2008 6:49:03 PM) comp.lang.idl-pvwave Hi All, How do I change the font and size of text on a button (or other widget)? For example... myButton = Widget_Button(myBase, value='Test') How can I change 'Test' to say 'Times' and increase it's size... cgoethel (20)

Band+Lat+Lon = georeferenced file? 2 40 (2/23/2009 9:28:21 PM) comp.lang.idl-pvwave Time and again I come back to the same situation where I have a bunch of satellite images with lat&lon values for each pixel and I need to create ENVI standard files (i.e., data file+header) or some other easy ... wilfrid_schroeder (1)

CDAT 2 39 (10/13/2009 8:18:07 PM) comp.lang.idl-pvwave Hi all - in the September 1, 2009 edition of EOS, the American Geophysical Union (AGU) journal, an article presented software called "climate data analysis tools" (CDAT) - written in *python*. That inspired a... pgrigis1 (374)

label_region/histogram help 2 22 (11/3/2009 9:21:18 PM) comp.lang.idl-pvwave I need some help on an image I'm working on. I've got many regions that I've distinguished via LABEL_REGION and looked at the population of the regions using HISTOGRAM. Most of these regions have a population... david.b.valdez (3)

legend not working with symcat 8 72 (11/4/2009 7:49:49 AM) comp.lang.idl-pvwave Hi all, The routine 'legend' is not working with the function 'symcat' for the following test program. ;;;;;;;;;=============================== pro legend_test set_plot,'win' window,0,xs=600,ys=500 n=12... ramaurya98 (15)

_EXTRA KEYWORD #2 9 44 (11/4/2009 10:28:34 PM) comp.lang.idl-pvwave Hi, everyone, Dose _EXTRA pass the keywords from the caller to called routine or the opposite? ... txwang.rs (3)

Intensity Plot 1 50 (11/5/2009 5:27:19 PM) comp.lang.idl-pvwave I have spectral data over time....what I am trying to do is make a false color spectra by just using the intensities...i.e. time on y, wavelength on x, the "brightness" of color as intensity for each time on y.... thetaeta1210 (1)

Use the device fonts for Ytitle on screen 7 38 (11/11/2009 8:56:28 PM) comp.lang.idl-pvwave Hi, everyone! I meet a problem about using the device ('Windows') fonts for Ytitle on screen. For example, !P.FONT = 0 DEVICE, SET_FONT='Microsoft Yahei' PLOT, INDGEN(11), Xtitle='X Title', Ytitle='Y... duxiyu (97)